无穷小及其应用研究

本文归纳总结了无穷小的性质,推广了等价无穷小代换法的适用范围,收集了一些典型例子帮助理解无穷小和掌握无穷小的应用。

This paper summarizes the nature of infinitesimal, extends scope of application of the equivalent infinites- imal substitution method, collected some typical examples to help understand infinitesimal and master its application.